The property had been converted into an area solely for the purpose of cannabis cultivation with lighting, ducting and electrical transformers all being installed.

The electricity meter had been by-passed to supply power to the cannabis farm, making it a significant hazard for surrounding properties.

Police Sergeant David McCarthy of Harrow’s Safer Transport Team said: “This is a typical example of the committed front line policing that officers from Harrow Safer Transport Team and the Roads and Transport Policing command deliver.”